Description

Tris(2-Hydroxyethyl)Methylammonium Hydroxide is a quaternary ammonium hydroxide compound, widely recognized as a versatile and highly effective organic base. This compound is particularly valued for its strong alkalinity and solubility in various organic solvents, making it a critical reagent in specialized synthesis and formulation processes. It is essential for industries requiring precise pH control and catalysis in non-aqueous systems, such as advanced material manufacturing and fine chemical production.

Application

• As a phase-transfer catalyst in organic synthesis reactions, facilitating reactions between reagents in immiscible phases.
• As a strong organic base for deprotonation and condensation reactions in the production of pharmaceuticals and agrochemicals.
• In the formulation of specialty surfactants and fabric softeners, leveraging its cationic quaternary ammonium structure.
• As a key component in gas chromatography (GC) stationary phases and analytical reagents.
• For the synthesis of ionic liquids and other advanced functional materials.
• In epoxy resin curing systems and as a catalyst for polymerization reactions.
• As a corrosion inhibitor and additive in metalworking fluids and industrial cleaning formulations.

Basic Information

Product Name	Tris(2-Hydroxyethyl)Methylammonium Hydroxide
CAS No.	33667-48-0
Molecular Formula	C7H19NO3
Molecular Weight	165.23 g/mol
Synonyms	Methyltriethanolammonium Hydroxide; Tris(2-hydroxyethyl)methylammonium hydroxide; N-Methyltriethanolammonium hydroxide; MTEH; 2,2',2''-Nitrilotris(ethanol) N-methyl hydroxide; Triethanolamine methyl quaternary hydroxide; TMAH (related compound, often confused); Contact for additional trade names.
EINECS	251-630-4

Quality Control

Our Tris(2-Hydroxyethyl)Methylammonium Hydroxide is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing to ensure it meets precise specifications for purity, concentration, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing assay, identity, and relevant physical-chemical parameters is provided with every shipment to guarantee traceability and compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and must be kept under an inert atmosphere or sealed with appropriate desiccants to prevent degradation and maintain efficacy.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (Titration)	≥ 20% in water or methanol (custom concentrations available)
Water Content (KF)	≤ 1.0%
Chloride (Cl)	≤ 50 ppm
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.